有一群年轻人站在街角。

There was a group of youths standing on the street corner.

《牛津词典》

我有一群孩子要供，要赚钱，还要养一所房子。

I have children to support, money to be earned, and a home to be maintained.

《柯林斯英汉双解大词典》

萨姆有一群朋友，他们都想帮助他学习法语。

Sam had a group of friends, and they all wanted to help him learn French.

youdao

And he walks out into the farmyard and he observes 20 heads and 56 legs.

这个农场主有一群猪--这是漫长的一天,一群猪和一群鸡。

麻省理工公开课 - 计算机科学及编程导论课程节选

and have a good group of people around me that I trust and that I love and who love me back.

身边也有一群我信任的人，我喜欢他们，他们也喜欢我。

幸福的定义 - SpeakingMax英语口语达人

So when we talk about a cohort study, this means taking a group of people and following them over time.

所以当我们提到定群研究,就意味着,有一群人参加实验并需一直追踪下去

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选